Didn't Alan Keyes pull a similar trick during the 1996 town hall debate, chaining himself to the front door of the auditorium before he was dragged off screaming by the cops?
Didn't Lurch pull a similar trick during the 1988 town hall debate, chaining himself to a rich widow before he was dragged off screaming by the cops?
I don't know if you're referring to the same event, but Keyes did try to forcibly enter a debate here in Atlanta, was hauled off by the police and, when they decided not to charge him, was dropped off on a street corner in one of the less savory parts of town. I've since had an amusing image in my mind of Dr. Keyes forcefully conveying his views to the other denizens of the corner that night.